Flamengo defender Pablo Mari's move to Arsenal is in danger of falling through.

The Daily Mailsays Mari's proposed move from Flamengo to Arsenal is in danger of collapsing because a late hitch has seen negotiations between the two teams stall.

The 26-year-old centre back travelled to London along with Gunners technical director Edu, completing a medical on Saturday, and it appeared there would be no issues with a deal being finalised.

But Mari has now flown back to Rio de Janeiro, with suggestions that an agreement has not yet been met between Flamengo and Arsenal over a transfer fee, which was expected to be around £7m.

It is believed the Gunners are keen on a loan deal with an option to purchase the player in the summer, but Flamengo would prefer a permanent deal and money up front straight away.